Horological motor.



B. A. ADLER.

HOROLOGICAL 'moroa. APPLICATION FILED JUNE 23, 1913.

1,144,748.: I Patented Jun 29, 1915.

3 SHEETS-SHEET I.

THE NORRIS PETERS CO.. PHOTOLITHQ. WASHINGTON. D. c"

B. A. ADLER. HOROLOGICAL MOTOR.

APPLICATION FILED JUNE 23, l9l3- Patented June 29, 1915.

3 SHEETS-SHEET 2.

THE NORRIS PETERS PHOTV-LITHQ. WASHINGTON, DEC.

B. A. ADLER.

HOROLOGIQAL MOTOR. APPLICATION min JUNE 23, 1913.

Patented June 29, 1915.

:Tsnszrs-suzn 3.

THE NORRIS PETERS C0,. PHOTO-LITHQ, WASHINGTON. D C

, 3 a AEAZDLER, or c-rrrcAed rLLmors, ASSIGNOR or onnynatr "r0 BETER A. LORENZ,

or cnrcaeo, ILLI OIS. v

, 1-;Be itk o" 1n thatI-, BRoR .-A. Annnma sub: ject of thefKing: offiwedemj'rsiding'at ch1 cago, in' the fcounty of Cook and: State, 0t Illinois, haveinventedi certain new and useful Iinprovei'nents in 'Horologica'l Motors, of

. which-the followingis a specification. I

invention I relates broadly to means for producing inter'mittentmotion.

-':' eratedii-iresponseto" .rn'aster clock, wherein impulses to the motor mechanism 'to' -move the time-indicating hands of the secondary clock in" h'arinonyfwith the"movement of similar hands of the master clock; I

. -I- One of the objects ofmy'inventionjis to provide asimple, reliable,cheap"of construe-1 I needs no further explanation. 1

" ti'on, and-"eflicient-motori;

fr'omthe master clock,"that may occurfinthe secondary clock within 'a'given period, so as to secure'exact and posltivefl concurrence of thepositions oii the tinieeindicatiilg hands of the secondaryclock Other, and ffui ther b invention will become: readily "-"apparent to persons skilled'in the art from a jconsideration of the e ow g descrip n: w e 'fi a ken i n junction with the drawings, wherein 5 I Fi ure )1 is fa front view 'ofthesecondary clock zmech a'nism' that is' resp onsive to the" master clock, and" adapted to move the hands ofq the secondaryx clock coincidentally' with correcting,mechanism ;.-Fig. 5-is an; enlarged nism used onthemaster clo'ckfand Fig. 8 is an enlarged brOken a' ay view of thepawls.

acters indijcate similarl'parts 5 nemmmmoma I 1, S ec ifieationof Letters Batent. I "llppli'cationfiled Junt 23,19 1 3. Serial No. 775,215.

:It is especially adapted as j a horological th those of the master against movement in either direction. It is "alsoprovided with an inclined tapered p ro'-,

, jection27, extending laterally from the main those of thefprimary onmaster' clock; Fig. is a side elevation of-the deviceyFig, 31s a f plan view ofthemotorfimechanismg Fig. 4* isfa front view with a -part off-the me'cha-' 2 .nism removed to show more clearly the time-1 v vverticalsectiontakenf'oniline 5-y 5 of F-igfl; v

Fig; 6fis {a rear view of aneccentric mecha-.

ni'sm T adapted for lifting the pawls when it is, desirable to? move the hands "of the second the locking pawl. is urgedforward, onits'power stroke, the I iparts27gand 29 engage and thereby the'lock Patented June 2 9, 1915.:

which screws pass in order'to'secure it to the '10 is the plate upon which the mechanism I dial 12, the. outlines of whichare shown in dotted lines in Fig. 1. The plate is spaced apart from the dial and is so'held by sep-' arating sleevesl3. Minute-hand and hourhand arbors 14 and 15 pass through the dial plate and through the frame plate 10 and ave connections with the minutehand 16 and the hour-hand 17 respectively. Secured to the minute arbor 14 isan hour wheel-18. provided withteeth adapted to movethe minute-hand one minute at each impulse.

The t'rain of gears tojconnect'the minute arbor and the hour arbor, as usual, is pro- ,videdin the gear Wheels 19- -20 and the in- ,termeshing' pinions 21 and 22. "This train of gears is common in all clocks and especially in secondary electrical clocks and The teeth 23 of the ratchet wheel18 are 9 each provided with fore-and-aft radial 'surfacesand inclined or tangential end surfaces.

surfaces of adjacent teeth to-lock the wheel s j body of the pawl toward the impulse pawl for cooperation with similar projection from the impulse pawl. 28 is the'impulse pawl provided with a similar lateral projection 29 for engagement of the projection 2Z'fon the lockingpawl; The impulse pawl is also'provided with a projection 30 forengagement withthe teeth 23 .of the ratchet orhour wheel. Thepart 30 in normal posifrom the teeth of the wheel which it is ultimately intended to engage and the pawllifting part 29, in'normal position, is practi Cally ,incontact with the coacting part 27 of When the impulse pawl ing pawl is lifted fromengagement with the 1 teeth before thepart 30 engages the teeth to move the wheel. When the part 30 has moved the minute hand and wheel a distance equal tolthe distance between adjacent teeth,

' the projection 29 of' the impulse pawl'will 7 tion' is removed 9' or drawn back somewhat I 1 have p'fi'ssed'bythe pet te-16527 flit-leek ingpawl and; on the return'excursion of the impulse pawlthe; part 2.9; Will ride overland I pass above the part 27 of the locking wpawl;

' Withfa'ny onelfo'f-the teeth ofthe'wheel',

YTlieimpiilsepeWlf-is pivoteclias etfilito as'liefth35f'3vvhich' is connected to theyertica'l eriii32zl; A spring 36se1 'ves'toholdthe eime 111132 which -noi inally rests against the-stopfiiil 1 i'mitiire 34 is: pivoted to a t'u'ieif 34' and" the vertical arin yieldingly to ptliefwheelfl 8. electromagnet '[38 is 216' iny-the retracted position shown in. Fig. l.

' el'ectroingignet 3 7,: in "conj nnetion with thearmature 3.5L, ls 'the electroresponsive clevic'e.Wh cl1,, whenenergized serves-to move both oi thelpewls'when, Po er is 'epplied pnojiid'ed with egresponsive armature 39 Whi'ch'fhasan' extended arm normally" resting; [upon one si'defof the armature 34:

i -and being]yiel'dingly held Inea-nsof the p inglell r, l l p .Wl'1enthe eIectI o-I negnetfi7 isenergized the arnintufe 341s attracted moving thevertical arm 32 tofthe leftfand thereby giving the power impulse toethe implilse pawl 28.

'Itfyvill .be'pbse ved that the first. or initial movementfjof the impulse pawl will ser ve to '1 r'ziisethel'o'c'king pawl tfro m its locked posi: tioniby engagement of projection 29' of the i I impfilse pawl," cooperatinggivith a simi'l'zi s i I projection, 27 of thelocl'iingfpajvl whichiop 0' er2'itienwill serve to mise thellockingypewl free f oinl the teethof the ratchet Wheel end;

'subseqiientlyitheiQpr jecti njBO -of tlie im pulse pawl; willmove the wheel Whileit is so, free-diiring a fn'i the movement of, .imp'ulsejpa'wh: Aboutlthe time; tlie wheel 'has' In-(wee to .theiextent of the distance be -i T tween wo edjacent teeth, theipifojection-2 9' f ofthe i npiilsefpewl"will have passed the ,pioj'e'cti'on 27 offthe locking :pziwl and the 0 em-m, stlgjoke of the .inipulse pawl- Wi1l;tend..- to press. the-lockinglpewl back into its. for j meifl' position; astlie part :29 vri'dles: oveivthe 4 ptftQTin thejfeturn stroke fofithe impulse", pe wl A sQ ingIAZpontrols the impulse g -pa;'wl exid at siniilerfl,spi ing 43 controls the; 1ocking;pe irl-",' bnt botlisprings act npon the 1 f locking pawl-i atthetime the projectionfnomii the} ii r'ipnlsei pawl isriding over the similen I pf ie i 1 h lQ ki pa l, e dl l -i Y fore the lockingl pawl isessu edv of being retu'rned proniptlyf to its locking position;

In Fi g..-. 1., the; circuit; 'for connecting the :setid', eljeLctIio- 'espon si' ve; mez ns, and a 'mestet'f' clock for 'conti olling sand cli cnit, anef die i,. ra eetl ly hown:ill hf ll fii e ma:

4writertd'aptdto"Be i-otited in' the directiori .pletes w I'GVOllltlOIltQOIliCG; every minuteal 'rsisiprovicled with a notch 4:6,into Which'i the lw'ill di ep when the wheel is rotateduntil they are coincident; asWhen it is rotated slightly'more than thatishown in the dra spring 48 and'the contact 49, end-atheielectf "magnet. if

47 will have a i isen f 'o mthe n0tch4 6'an thewheel 51'] willwhave dropped into--th may h e-stated th at' the armature. i of; the electromagnet; 35L is ztttriz c'tedg the ex- -i'Howiei er the: circuit is completecl fro and-E e; t Q Q' ac LTl an ve i h r i f spyfiingfl 63, therefoneitlie circuit; will: b

shownby thearrow onn'n-arb or whichcol rollei 47, secured to an elasticgspring 48; 1

ings. When-the. roller 47-Idrops into ;t e notch '46 *circuit will be [closed between th magnet. I 5'1 will. be energized: thnoughrgthe fol-lowing circuit from batteryiB over the wirefO, through spring 4:8.[to contact 4 ove fitiresi52 ancl 53to the'electromagnet l" 1 and thence-over Wires 54" to 57 inclusive i l "A to the cont 11 58, over the fiexible springj59 to the-extensiont60 ontliej armature. and back to bZLttGIYOVGl'IthQ Wire 61, When-the armature 34 is attracted bythe magnet: @37' contact-is. thus b ioken between the" spring; 59 and 5 the zirlnajture eXtensi n -GQ thus break: ing] the geirjeuit of: {the energized; agn and; esteblishing; circii-it for" the 'nnl'ocki'n purin" *th li tatibii dfthef I mimit 1min nintating ca-ml or wheel ",thejcontact h'e notehgf this tlI IIG blIG reisingof thei yvhee 47 Will open circuit: between the spring and the contact 49,; and the: droppingso'fl th wheel th ,nbtc ae iu m ci'rci it between the, spring '51, "and the co tact 6%, and thefcii cuitqwill then beco'I n plete'd follows rgfron'il the battery one tliewireQQ';to the'spflng Contact 51, to the; contact 64 {and {oven the V l- IQSj 65, 66, and 6 to theleleetroniegnet 38.; Rztrentheticall tension 40 of the; nn-lockin'ga eleCtI niagnetZB will, drop jbehind e mature34L andl rete'in lockfit in 'gthe p'ositionfiir "which-it has b .pIacedIib he} electroniagn et' 37.3} Now whe j the armature 1'38 istyttrzicted' by the cujntentf; flowing ovei lille -illiclllt :jnst desci'ibecl; 1th armature Q- ill he" drawn towaifdpthe un leilli e e tmma net'3 e n t e: prbiectiq 40' will be jliiitedg aellowingi the arniaturef-Bl; 12 5 the el ectroine gnet 38;; even the; Wires 68, 69 a l t' h Q-e e armature 34, s new lo ks t d seed position by' extension' 40i=whic tension; is; in lcontact witht h completedffnom thcspring 63 withtthe ex tension; 60." and {to -the frame of? the devic oventhe.wire..-6;1' backfto. betteny, completin' the circuit through; therelfeasfing? or unlock 'ing electrom'agnet 38 and :permitting the that: may existin the position o fthe time-:

armature 34 to returnto itsnormal'position atthesame time thepa-wl 28 has=zbeen returnedto its normal position andthe'hands Y have lbeen'moved theldistance of one minute.

It is desirable tocorrect any irregularity I indicatingcha nds Y on :the secondary clock v every hour, and: to this end I provide mecha with reference tol the position of similar hands Y, on the hprimaryt :or master clock, and it is further desirable that such correction shall be made] positively,, preferably Ionce nis'm for thispurpose consisting of" levers v72 73, pivoted as at" 74. and 75,, respec- ,tive'ly, tofastationarypart of; the frame. v The lever -are ,yieldingly held in extended or openpositioni by means of the spring 7 6. Y

A==projection 77 on lever 72 extends into a recess .78 on lever 73'so that when lever 7 2, isbr u'ght up to a substantiallyi vertical positiontnis connecting'means will operate 7 to bringlever 73 also into a vertical position Y parallelwith the companion lever, as shown in Fig. 4'. Each of-the levers are provided with-laterally extending parts 80 and '81 respectively, for engagement with a screw or "projection 7 9 whenithe said levers are 1n olisare approaching substantially vertical positions. --Securedto the lever 72 is an armature-8 3, which is responsive to the electromagnet" 84, to move the said levers to the v vertical'positions shown" in Fig; 4 when the said magnetfis energized. "When the levers. are fin open or extendedposition, substantiallyf'a-s shown in Fig.1',ftheparts'80 and 81, which laterally extend toward the hour wheel 18 from' the said levers, are removed 1 Y from'thepath'of the screw orprojection7 9 40 which issecured to the'wheeL v r t Thej nasterl clockj is provided with a contact 86, preferably located adjacent the j point-indicated by thefnumeral'12, which is spring 51,"andfafter "the wheel 51 of the wheel 45,-circuitwvillbegcompleted from the spring; 51 to the contact 64, through the wires 65,66, and-67, thence through the releasegmagnet 38 overi the wires 68, 69, the

- wire 88, through'electromagnet .84, and over thei'wire 89, back to :the contact 86 of the I Y masterclock, through the minute hand 87, ioverlthe wire62 to wire 61, and back to the jba ttery thus completing the electric circuit 'and energizing the release magnet 38and the' 'electro'magnet 84, causing the levers .72

' and-73tobe drawn intosubstantially avertical pofsitionshown' in Fig. 4, and thereby moving the hour wheel by contact of either .Ofthe handson the primary clock.

' master or primary clock.

lever with the projection. 7 9 to move into i a substantially vertical position, therebycorrecting all inequalities that may exist with reference to the relative positions of" the hands on theisecondary clock and that It is evi dent,'c however, that the hour wheel 18 Y cannotbemoved'solong as the lockingpawl 24 is'in contact between theteeth of the hour wheel 18, and to this end 'Iprovide -onthelever 72 va' tapered arm 90, pivoted as 31191,

and elastically held in the position shown by; spring 92. When the arm 7 2 is drawn np to the position shown in 4, the: tapered end ofthe; armk 90 passes';under the projecsr tion93 on the locking pawl} 24 and under similar projection v94 under the" impulseo paW1:28-, thus liftingthe said pawls and per-- mitting the wheel18 to be turned or rotatedj Each time the.minute l1and 81 passesc'onta'ct 86 (that is, at each hour) the projection 79 should, be in precisely vertical'position, but should the secondary clock haver-un slower" or faster than it-should,then the'projec'tion 79 will be either on the right or the leftjhand side of the vertical line taken through the axis of the wheel 18, indicating that the secondary clock is either too fast ortoo slow,

and when the levers j 72 and 7 3 are brought up to vertical position, the projection 180;or

81 on therespective levers, either one or the other depending whether the clock is slow or fast, will engage-the projection 79 and'rO- tatethe hour wheel18 forwardly or backwardly, as the case may be, sufiiciently' to bring the'projection 79 and with itthe hands 16 17 into the true vertical position, and 7 thus set thehands of the clock back or ahead as circumstanceswill warrant, thereby correcting the clockperiodically to correspond precisely with the conditions existing on the This correcting circuit is to be closed only for a veryl'sloortfl period of time,"'or duringathetimethat the contact wheel 51 is within .)the notch 46' of the minute wheel 45, but for a sufficient time; to perform "the function described 7 The battery being closed for such shortv'duration,

the efficiency of the device :will be understood. v i Y As soon the lever 7 2has arrived at its vertical position the interdental portion 26 U of the locking pawl 24 will immediately drop projecting arm90 from lever :72 will ride over the projection 93 on the locking pawl uba-ck into 'its locking position between two I adjacent teeth of the'hour wheel 18, and the 9 v v on its returnto the normal position shown in 1, thereby preventing the possibility of 7 moving the hour wheel 18 from the position in which it has been placed by the cooperation of thelevers 72 and 73 with theprojec' tion 79. 7

Should it be required at any timethat'the secondary clock should be set by hand,

I' :"provide a; manually operable. .1 means for liftingthe pawls from the-hour Wheel 18'so thatithehandsiof the clock, together. With {the hour WhQGl, may be freelyrotat'ed. {To f thisend, Iprovidei a stemr 97 which takes through thew-frame" plate- 10 [and the "diaL.

, plate .1201 the clock, having an integral disk part 98'ipro jecting. fromgits inner end; a The stud or stem 97ipasses through then-late 7 'tat'edufrom the; dial: side. byrmeans .oftthe;

screw 99. Secured to the-disk; 98by' means 10 {and-the dial: 12,ifand :is ;adapted to be 120- ofjscrew .lOlis a stirrup. or,1ink l00. It is V I slotted at "itsplovve'r end: and'is guidedby a scretv1102 Which-takes*intothe slot: "Near w-itsimid -portion it isv provided with a perforation I03, I "Within. which are included the I if lateral. lprojectionse27 hand; 2910f the awn, 24 and28,' respectively, so that whenithe 1' lifted by zconta'ctgvith these projections. A

friction: 1vas11er ,105; permits the mechanism, justjdescribed, to remainin the position -in which it has 7beenmoved andtherefore the hour wheel, 18; will: be freev to be moved by I r 25}; I turning 50f the minutehand; until the parts link 1101 is lifted the pawls 24 and 28, are

have been returned to their normal positheimpulse'magnet 37is closed only-long of inayliii e obtained for description [that the [circuit through themagnets 34,38, and 8 4;areclosed fora very short period of time; The circuit through:

enough'to operate thelpavvlsiand to accomengaging said wheeltolock it against mov to move the 'wheelma distance equal to t electro-responsive means for moving both 'tance; electro-responsive means for moving v figvecents each, by addressing the Commissioner 'of'letent H: 4 Washington, 'D.O.

remains: energized.v for a very short period of time, or' during the interval that'wheels; r eL'Z-andfil are passing into and through the,;; notch 46, as heretofore described. i

1. While I have herein described a s ngles embodiment of my invent'ion for-the purpose; of clear-disclosure, itis evident that-j many changes mayzb'e made in the specifici 1 structureshown Withoutdepartingfrom the;

spiritand scope of myainventionas' defined bythe appendedcla'imsfi';

WVhat Iclaimisr 1; In af;device of theic'haracter described,

a ratchet, whee1; locking pawl, normally ment in 1 either direction; an, impulse paw distance between two adjacent -teeth;,an

pawls; a latch for locking said pawl mo ing means after the said pawls have beenso moved and an electro-r'esponsive meansv for releasing said latch. 1 1 I 2. In a'device of the character described,

a ratchet Wheel; a locking pawl; a'pawlfor moving said Wheel a distance equalto that'jf between two adjacent teeth on the zsaid wheeh, electro-responsivemeans for mov-g ing both pawls; an felectroresponsive means 3 for locking the pawls in moved position; and means, operable by the pawl-moving means, foropening its own circuit. 1 3. Ina device, of the character described, a ratchet wheelya locking paw-1; a pawl for moving 1- said wheelija 'predeterminedjdi s both paivls and-an electro-responsive means for lockingthe pawls i'n moved position- In testimony whereof I hereunto 7 set my hand in the: presence oftwo witnesses.

., I B Ron 1A, ADLERL In thee-presence 1015- V x M R FA E W, LINN ALLEN. 

